Francesco Redi showed that microorganisms are present in air thereby disproving the idea of spontaneous generation and is denoted as option B.
What is Spontaneous generation?This is supposed production of living organisms from non living substances.
The jar was left open and had maggots in it means the flies laid their eggs which later turned to the maggot which was what Redi observed during the experiment.
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Relative to the length of time life has been on Earth, have modern humans appeared recently or in the distant past?
pLeAsE HeLp Me...
Answer:
recently
Explanation:
earth has had like for billions of years
humans have been here for hundreds of thousands
so to put it simply humans have been here for like 1/10000 of earths lifetime and that's very inaccurate but ik just making a point
In this exercise we have to explain why human beings are considered recent in relation to the time of the earth, so we can say that;
taking into account that the earth is 4.5 billion years old and human beings only existed for approximately 200 thousand years, we can say that we are extremely recent.
How old is a human being on Earth?Anatomically modern humans have their first fossil record in Africa, about 195,000 years ago, and molecular biology studies provide evidence that the approximate time of the common ancestral divergence of all modern human populations will have been 200,000 years ago.
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What body system controls the female menstrual cycle?
Answer:
Brain structures called the hypothalamus and pituitary gland control the menstrual cycle.
Explanation:
Answer:
The female reproductive system is a wonderfully complex system involving continuous communication between the brain centers and the ovary. Hormones secreted by the hypothalamus, the pituitary, and the ovary are the messengers that regulate the monthly cycle.
Explanation:
Hope that this helps! :)
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Organisms that eat other organisms are called __________.
Answer:
Heterotrophs Or Consumers
Answer:
heterotrophs
Explanation:
Hello, I need help with this assignment. Thank you ಥ_ಥ
Answer:
Explain the terms “criteria” and “constraints.” Criteria are things the design needs to do in order to be successful--its requirements. Constraints are limitations on the design. These may be materials available, the cost of the materials, the amount of time they have to develop the solution, etc.
Design criteria are the explicit goals that a project must achieve in order to be successful. ... Design criteria can be divided into primary and secondary criteria. Primary criteria are those that constitute a successful project; the project will be unsuccessful if it does not meet these goals.
Drag Each Tile To The Correct Location On The Table. Classify the mutations as somatic or inherited
Answer: inherited: -exists in all the cells of the body
-transferred via egg and sperm cells
Somatic- skin cancer by uv
-Not passed on to offspring
-found in a specific cell
Type
Explanation: Plato
A wave along a guitar string has a frequency of 450 Hz and a wavelength of 3.5 meters.
Calculate
the speed of the wave. Show the formula and show your calculation.
Answer:
1575
Explanation:
speed = wavelength ×frequency
Our wavelength is 3.5 and our frequency is 450 we've been told to find the speed so we multiply the two which gives us 1575
On topographic maps, circles inside circles like the map below represents:
a depression like a crater
a like or pond
a hill or mountain
a canyon or a valley
Which statement provides evidence that mitochondria most likely evolved when a primitive eukaryotic cell engulfed a prokaryotic bacteria?
Answer:
Both mitochondria and bacteria have a circular DNA molecule
Explanation:
Answer:
Both mitochondria and bacteria have a circular DNA molecule.
Explanation:
I took the test
In the kool aid mixture, what must there be more of, hydrogen ions or hydroxide ions?
Answer:
hydrogen ions
Explanation:
it is an acid hence why it must contain more hydrogen ions.
06.06 Virtual Garden Lab Report
Instructions: Select the Virtual Garden Lab from the lesson assessment page. The lab will open in a new window. Select begin and follow the instructions to complete the lab report. As you complete each slide of the Virtual Garden Lab Activity, please fill in this lab report with the appropriate information and data.
Title:
Objective(s):
Hypotheses: Make predictions of what you think will result in the healthiest garden. Be sure to give a reason for your hypothesis.
Variables:
Materials:
Virtual Garden Simulation from lesson
Virtual Garden Lap Report Form
Procedures:
The procedures are included in Virtual Garden Lab Activity. You do not need to include them here.
Data and Observations:
Virtual Garden Observation Data Chart A [Hint: observations should be detailed]
Row Day 1 Day 2 Day 3 Day 4 Day 5 Day 6 Day 7 Day 8 Day 9
1
2
3
Virtual Garden Observation Data Chart B [Hint: observations should be detailed]
Row
9 days
2 weeks
4 weeks
6 weeks
Plant Height
1
2
3
Virtual Garden Observation Data Chart C [Hint: observations should be detailed]
Row
9 days
2 weeks
4 weeks
6 weeks
Plant Height
1
2
3
Virtual Garden Observation Data Chart D [Hint: observations should be detailed]
Row
9 days
2 weeks
4 weeks
6 weeks
Plant Height
1
2
3
Analysis Questions:
Analysis questions need to be answered using complete sentences. Some questions may require a longer explanation in paragraph form.
Which row was the best placement for the pansies, hydrangeas, and sunflowers? Explain your answer.
Describe the process of germination and plant growth you observed in the lab activity for a monocot plant. (Hint: Use data chart A to help with your description.)
Describe the process of germination and plant growth you observed in the lab activity for a dicot plant.
Which of your plants was a dicot? Which was a monocot? How could you tell? (Hint: Refer to the lesson for differences in monocots and dicots.)
What was the correct water level for germination? Why did this water level work best for all the plants in the garden?
What water level did you select for plant growth during your first attempt? Describe the observations of your plants at this water level. Based on your data, was the level you picked the best choice for optimum growth?
What pH level did you select for plant growth? Describe the observations of your plants at this pH level. Based on your data, was the level you picked the best choice for optimum growth?
Describe your observations of plant growth in zero gravity. Can you provide possible reasons for the growth patterns? (Hint: Refer to tropisms in the lesson for ideas.)
Conclusion Questions:
Conclusion questions need to be answered using complete sentences. Some questions may require a longer explanation in paragraph form.
In a real garden, which hormones would stimulate seed germination and plant growth? How do these feedback mechanisms maintain homeostasis in plants?
How does the accuracy and precision of the data collected in the virtual lab compare to the data collection that would occur in an investigation of a real garden?
What factors could not be measured or accounted for in the virtual lab that would happen in the internal and external environment of a real garden?
If you completed the same investigation in a real garden, how would you refine the investigation to account for the limitations of the virtual garden?
Based on your experiences with the Virtual Garden, how would you set up a real backyard garden? Describe what you learned about plant behavior in this lab that will help you cultivate a healthy garden.
What was Charles Darwin's area of study?
Answer:
The theory of natural selection was explored by 19th-century naturalist Charles Darwin. Natural selection explains how genetic traits of a species may change over time. This may lead to speciation, the formation of a distinct new species.
Hopefully u will satisfy with my answer of ur question..!!Have a nice day ahead dear..!!Please Mark on brainleast please..!!Answer:
Natural history/Geology
Explanation:
what happens to the original cell's chromosome during fission?
Answer:
It is a austic kid
Explanation:
Explanation:
Fission or binary fission is a process of cell division, used by single-celled organisms (also known as prokaryotes). This division is a form of asexual reproduction and results in a genetically identical offspring. Prokaryotes contain a single DNA molecule. During the fission process, replication of this DNA molecules occurs and the cell ends up with two copies of DNA molecule. These molecules are separated and are attached to different parts of cell membrane. This part of fission process is followed by actual cell division into two daughter cells. Each daughter cell ends up with one DNA molecule. Thus, each daughter cell is identical to the parent cell in all respects and the number of chromosomes are same in both the parent and daughter cells.
In comparison, eukaryotes undergo sexual reproduction.
Hope this helps.
a transcribed strand of mRNA has the sequence of UACGA what was the DNA sequence and where does the mRNA need to go next
Answer:
f
Explanation:
f
Answer:
ATGCT, mRNA needs to go out of the nucleus to the cytoplasm to bind to a ribosome.
Explanation:
mRNA strand: UACGA
complementary strand (DNA): ATGCT
in DNA & RNA:
C = G
in DNA:
A = T
in RNA:
A = U
( DNA nitrogen bases: A, T, C, G ..... RNA nitrogen bases: A, U, C, G)
and you better review protein synthesis to know more about mRNA
Stay curious!!
Climate change is predicted to have an impact on Earth's biodiversity. What could be a
consequence of climate change on marine biodiversity?
Answer:
Effects on Ocean Biodiversity
Rising sea levels will also cause changes to ocean temperatures and perhaps even currents. ... In addition, increased carbon dioxide causes acidification of the ocean, affecting creatures and plants that are sensitive to pH imbalances.
[PLATO] Drag the tiles to the correct boxes to complete the pairs.
Match the correct type of job to its description.
1. nutritionist
2. food production supervisor
3. golf course superintendent
4. horticulturist
1a. manages clubhouse grounds and landscapes them
2a. assists with the growth, distribution, and selling of plants
3a. advises on selecting healthy meals for a balanced diet
4a. coordinates the manufacturing processes of food
Answer:
Nutritionist- Advises on selecting healthy meals for a balanced diet
Food production supervisor- coordinates the manufacturing processes of food.
golf course superintendent- manages clubhouse ground and landscapes them
horticulturist- assists with the growing, distribution, and selling of plants.
Explanation:
i got a 100
What are the sources of the energy that drives the earth’s processes?
Select one:
A. The sun and the earth’s interior.
B. The sun and chemical reactions.
C. The earth’s interior and chemical reactions.
D. The earth’s interior and gravity.
Answer:
Most of the energy in the Earth system comes from just a few sources: solar energy, gravity, radioactive decay, and the rotation of the Earth. Solar energy drives many surface processes such as winds, currents, the hydrologic cycle, and the overall climate system.
Explanation:
Hope it helps
FOLLOW MY ACCOUNT PLS PLS
Someone please help! Its due monday and it has to be finished today! Please ^n^
Answer:
look below
Explanation:
limit clearing of trees for farmland - deforestation. support goverment in developing clean energy - fossil fuels. low soil quality - fertilze with organic matter
2
Which of the following traits is encoded in your DNA?
A
Your personality
B
Your likes and dislikes
C
Your intelligence
D
Your eye color
Answer:
D
Explanation:
it's your eye color because DNA makes up the genetic aspects of you. The other choices are something you can choose to improve or change.
Eye color trait is encoded in the DNA. So, the correct option is D.
What are Traits?A phenotypic trait is defined as a clear, observable and measurable characteristic of an organism that is the expression of genes in an observable manner. An example of a phenotypic trait is a specific hair color or eye color.
This is described as a distinctive characteristic of an individual that can be determined by genes, environmental factors, or a combination of both. Characteristics can be qualitative for example, as eye color) or quantitative for example, height or blood pressure.
Thus, Eye color trait is encoded in the DNA. So, the correct option is D.
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PLEASE HELP ME ON THIS QUICKLY!
The Dart Frog is a brightly colored frog. These bright colors could mean that this frog is poisonous, warning predators to stay away. Plants in the rainforest are normally crowded and have very little space. The big leaves of a Hosta Plant allow the plant to receive as much sunlight as possible when the sun is out.
What type of adaptations are these? Compare and contrast the adaptations of the Dart Frog and the Hosta Plant. Your answer should be 3–4 sentences long.
Explanation:
is this ok?
or
characteristics of dart frog:-
1)poison dart frogs live in rainforest habitats in Central and South America.
2)they can be found in trees, as well as under leaves and locks and rocks on the floor of the forest.
3)because of their size from 1/2 to 2 inches long, they are hard to see.
characteristics of Hosta Plants:-
1) hostas( Hosta spp.) originate from Asia and are also known as plaintain Lillies.
2)this genus of herbaceous perennials consists of 40 species with thousands of hybrids.
3) there are currently 5 size categories for the typical size of a mature Hosta clump.
if it helps don't forget to like and mark me
The adaptations of the Dart frog are as follows:
The Dart frog is native to the tropical environments of Central and South America which are humid conditions. These frogs are brightly colored and poisonous to their predators. Due to poisonous taste, other frogs perform mimicry to ensure their safety from predators.The adaptations of the Hosta plant are as follows:
Hosta plants are native to Northeast Asia, Japan, Korea, etc. The leaves of this plant are big and therefore it receives as much sunlight as possible when the sun is out. It requires fertile soil which is full of organic matter to yield proper growth and development. What is Adaptation?Adaptation may be defined as the adjustment of organisms to their environment in order to improve their chances of survival in that environment.
Therefore, the adaptations of the Dart frog and the Hosta plants are briefly described above.
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In geotropism, plants grow toward _____.
A)gravity
B)sun
C)other plants
D)light
Answer:
I think the sun
Explanation:
bc plants need water and sun to survive
Answer:
B)sun
Explanation:
...............
Energy production is the process in which one kind of energy changes
into another kind.
True
False
State TWO reasons how bacteria can be useful to humans,
Answer: Creating products, such as ethanol and enzymes.
Making drugs, such as antibiotics and vaccines.
Making biogas, such as methane.
Cleaning up oil spills and toxic wastes. Bacteria have long been used by humans to create food products such as cheese, yoghurt, pickles, soy sauce and vinegar. We are also able to use bacteria to break down our sewage and to clean up oil spills.
Explanation:
Answer:
They help to digest substances that the human body cannot break down, like many carbohydrates and things called short chain fatty acids. Friendly bacteria give you protection from the microorganisms that could cause serious illness.
Explanation:
What is a mutagen?
A. A way to test for chromosomal mutations
B. A type of mutation involving chromosomes
C. An environmental agent that changes DNA
D. A mutation that is inherited from parents
The answer to the question is that Mutagen is an environmental agent that changes DNA.
Types of Mutagens:
Physical mutagens: Ionising radiation, such as X-rays, gamma rays, and alpha particles, is one example. UV radiations can also act as possible mutagens.Chemical mutagens: Mutagens include arsenic, nickel, and chromium. Some organic chemicals, such as benzene, are also mutagenic in nature.Biological mutagens: Transposonas and viruses are two examples of biological mutagens. Furthermore, some bacteria, such as Helicobacter pylori, have been linked to an increased risk of stomach cancer.Thus we can conclude that A mutagen is a physical or chemical substance that permanently alters genetic material in an organism, generally DNA, increasing the incidence of mutations over the natural background level.
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please help meh i will give brainliest
Answer:
Power has to travel a long distance over power lines to reach cities. Because there is no power plants.
Explanation:
Please tell me if I am wrong! good luck!
Answer:
It is expensive because of the pole and the generator you would have to build.
Explanation:
(I WILL MARK BRAINLIEST AND GIVE THANKS) QUESTION 1
DOK 2
What is another example of mechanical weathering?
SELECT AN ANSWER
a cliff getting worn away from the ocean
waves crashing against it
sulfur dioxide and nitrogen gases creating
acid rain
Lichen make a weak acid that dissolves
rock
carbon dioxide from the air dissolving in
rainwater, which hits the rock to make new
minerals, like clay
Answer:
the first answer I hope I helped you
An unidentified element melt at -7-2 c and boils at 58C. What is its physical state at room temperature
where is this ecoregion located?
Answer:
South Texas rather this answer, sorry if not, but I remember that this is the answer
How many chromosomes does the human genome contain?Immersive Reader
(10 Points)
A. 14
B. 23
C. 46
D. 96
Answer:
23 chromosomes is the answer
How does the temp of water effect how long a glow stick will glow for?
what is the test variable and the outcome variable?
***8 Points*** Two copies of a ______ allele are needed to produce a trait.
